I'm still noticing some weirdness regarding the economics. Mainly, I'm having trouble using the mobilization decision. It worked the first time in 1918, but now it doesn't. I've tried it for a few turns in a row, but nothing seems to happen, even though I have plenty of money and EP. I've included a save from my current and previous turn, as per the usual arrangements.
Also, when using the decisions, I'm not sure I always pay the amount of EP indicated. I haven't really looked into this, it just seems that I have accumulated more EP than I should have, considering the number of decisions I've used.